package com.heima.behavior.service.impl;

import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApReadBehaviorService;
import com.heima.common.constants.article.HotArticleConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.UpdateArticleMess;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.dtos.ReadBehaviorDTO;
import com.heima.model.user.pojos.ApReadBehavior;
import com.heima.model.user.pojos.ApUser;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.Date;

@Service
@Slf4j
public class ApReadBehaviorServiceImpl implements ApReadBehaviorService {

    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;
    @Autowired
    RabbitTemplate rabbitTemplate;

    @Autowired
    MongoTemplate mongoTemplate;
    @Override
    public ResponseResult readBehavior(ReadBehaviorDTO dto) {
       // 1. 校验参数 文章id必须传
        Long articleId = dto.getArticleId();
        if (articleId==null){
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST,"文章id不存在");
        }
        // 2. 根据登录用户id 或 设备id查询行为实体数据(阅读操作可不登录)
        ApUser user = AppThreadLocalUtils.getUser();
        ApBehaviorEntry apBehaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(user == null ? null : user.getId(), dto.getEquipmentId());
        if (apBehaviorEntry==null){
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST,"行为实体获取失败");
        }
        // 3. 判断阅读行为是否存在
        Query query = Query.query(Criteria.where("entryId").is(user.getId()).and("articleId").is(dto.getArticleId()));
        ApReadBehavior readBehavior = mongoTemplate.findOne(query, ApReadBehavior.class);
        // 4. 不存在  创建阅读行为 并初始化count字段值为 1
        if (readBehavior==null){
            readBehavior = new ApReadBehavior();
            readBehavior.setEntryId(apBehaviorEntry.getId());
            readBehavior.setArticleId(dto.getArticleId());
            readBehavior.setCount((short) 1);
            readBehavior.setCreatedTime(new Date());
            readBehavior.setUpdatedTime(new Date());
            mongoTemplate.save(readBehavior);
        }else {
            // 5. 存在  将阅读行为的count字段加1 并修改
            readBehavior.setCount((short) (readBehavior.getCount()+1));
        }
        UpdateArticleMess mess = new UpdateArticleMess();
        mess.setType(UpdateArticleMess.UpdateArticleType.VIEWS);
        mess.setArticleId(dto.getArticleId());
        mess.setAdd(1);
        rabbitTemplate.convertAndSend(HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE, JSON.toJSONString(mess));
        log.info("阅读行为 发送消息 ==>{}",mess);

        return ResponseResult.okResult();
    }
}
